Thread(优先级和yield方法)

设置线程优先级----------------------

setPriority();

Thread.MAX_PRIORITY;

Thread.MIN_PRIORITY;

yield---------------------------------------

释放线程执行权

什么时候用多线程？

某些代码要同时被执行的时候，用单独的线程进行封装。

package process;public class ThreadTest {public static void main(String[] args){new Thread(){public void run(){for(int i = 0;i < 100; i++){System.out.println("abc");}}}.start();for(int i = 0;i < 100; i++){System.out.println("abc");}Runnable a = new Runnable(){public void run(){for(int i = 0;i < 100; i++){System.out.println("abc");}}};new Thread(a).start();}}